Cell Theory Flashcards
1
Q
Characteristics of Life:
A
- Need Energy: eat, photosynthesis
- Produce Wastes
- Grow
- Reproduce
- Respond: to the environment
2
Q
What did Aristotle discover?
A
-he observed frogs in mud, and mice in wheat husks
3
Q
abiogensis:
A
the idea that life can come from non-living matter
a= not or opposite bio= life gensis= creation
4
Q
What did Redi discover?
A
- he used a controlled experiment with flies to disprove abiogensis
- maggots developed in the open jar on the meat, none in the covered jar, so the flies came from the outside and not from the meat
5
Q
biogensis:
A
the development of living organisms from other living organisms
6
Q
What did Pasteur discover?
A
-he studied fermentation and sour milk caused by micro-organisms (experiment supports biogensis, life from life) (1850)
7
Q
Schlediden, Schwann and Virchow proposed the basics of cell theory…
A
- All organisms are composed of one or more cells
- The cell is the smallest functional unit of life
- All the cells are produced from other cells
8
Q
cell:
A
the smallest functional unit of life
9
Q
What do cells do?
A
-they provide structure for the body, take in nutrients from food, then convert those nutrients into energy and carry out specialized functions
